| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * 3. Neither the name of Google Inc. nor the names of its contributors |
| * may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/dom/custom/CustomElementRegistrationContext.h" |
| |
| #include "HTMLNames.h" |
| #include "SVGNames.h" |
| #include "bindings/v8/ExceptionState.h" |
| #include "core/dom/Element.h" |
| #include "core/dom/custom/CustomElement.h" |
| #include "core/dom/custom/CustomElementCallbackScheduler.h" |
| #include "core/dom/custom/CustomElementDefinition.h" |
| #include "core/html/HTMLElement.h" |
| #include "core/html/HTMLUnknownElement.h" |
| #include "core/svg/SVGUnknownElement.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| void CustomElementRegistrationContext::registerElement(Document* document, CustomElementConstructorBuilder* constructorBuilder, const AtomicString& type, CustomElement::NameSet validNames, ExceptionState& es) |
| { |
| CustomElementDefinition* definition = m_registry.registerElement(document, constructorBuilder, type, validNames, es); |
| |
| if (!definition) |
| return; |
| |
| // Upgrade elements that were waiting for this definition. |
| const CustomElementUpgradeCandidateMap::ElementSet& upgradeCandidates = m_candidates.takeUpgradeCandidatesFor(definition->descriptor()); |
| for (CustomElementUpgradeCandidateMap::ElementSet::const_iterator it = upgradeCandidates.begin(); it != upgradeCandidates.end(); ++it) |
| didResolveElement(definition, *it); |
| } |
| |
| PassRefPtr<Element> CustomElementRegistrationContext::createCustomTagElement(Document& document, const QualifiedName& tagName, CreationMode mode) |
| { |
| ASSERT(CustomElement::isValidName(tagName.localName())); |
| |
| RefPtr<Element> element; |
| |
| if (HTMLNames::xhtmlNamespaceURI == tagName.namespaceURI()) { |
| element = HTMLElement::create(tagName, document); |
| } else if (SVGNames::svgNamespaceURI == tagName.namespaceURI()) { |
| element = SVGUnknownElement::create(tagName, document); |
| } else { |
| // XML elements are not custom elements, so return early. |
| return Element::create(tagName, &document); |
| } |
| |
| element->setCustomElementState(mode == CreatedByParser ? Element::WaitingForParser : Element::WaitingForUpgrade); |
| resolve(element.get(), nullAtom); |
| return element.release(); |
| } |
| |
| void CustomElementRegistrationContext::didGiveTypeExtension(Element* element, const AtomicString& type) |
| { |
| resolve(element, type); |
| } |
| |
| void CustomElementRegistrationContext::resolve(Element* element, const AtomicString& typeExtension) |
| { |
| // If an element has a custom tag name it takes precedence over |
| // the "is" attribute (if any). |
| const AtomicString& type = CustomElement::isValidName(element->localName()) |
| ? element->localName() |
| : typeExtension; |
| ASSERT(!type.isNull()); |
| |
| CustomElementDescriptor descriptor(type, element->namespaceURI(), element->localName()); |
| CustomElementDefinition* definition = m_registry.find(descriptor); |
| if (definition) |
| didResolveElement(definition, element); |
| else |
| didCreateUnresolvedElement(descriptor, element); |
| } |
| |
| void CustomElementRegistrationContext::didResolveElement(CustomElementDefinition* definition, Element* element) |
| { |
| CustomElement::define(element, definition); |
| } |
| |
| void CustomElementRegistrationContext::didCreateUnresolvedElement(const CustomElementDescriptor& descriptor, Element* element) |
| { |
| ASSERT(element->customElementState() == Element::WaitingForParser || element->customElementState() == Element::WaitingForUpgrade); |
| m_candidates.add(descriptor, element); |
| } |
| |
| PassRefPtr<CustomElementRegistrationContext> CustomElementRegistrationContext::create() |
| { |
| return adoptRef(new CustomElementRegistrationContext()); |
| } |
| |
| void CustomElementRegistrationContext::setIsAttributeAndTypeExtension(Element* element, const AtomicString& type) |
| { |
| ASSERT(element); |
| ASSERT(!type.isEmpty()); |
| element->setAttribute(HTMLNames::isAttr, type); |
| setTypeExtension(element, type); |
| } |
| |
| void CustomElementRegistrationContext::setTypeExtension(Element* element, const AtomicString& type, CreationMode mode) |
| { |
| if (!element->isHTMLElement() && !element->isSVGElement()) |
| return; |
| |
| if (element->isCustomElement()) { |
| // This can happen if: |
| // 1. The element has a custom tag, which takes precedence over |
| // type extensions. |
| // 2. Undoing a command (eg ReplaceNodeWithSpan) recycles an |
| // element but tries to overwrite its attribute list. |
| return; |
| } |
| |
| // Custom tags take precedence over type extensions |
| ASSERT(!CustomElement::isValidName(element->localName())); |
| |
| element->setCustomElementState(mode == CreatedByParser ? Element::WaitingForParser : Element::WaitingForUpgrade); |
| |
| if (CustomElementRegistrationContext* context = element->document().registrationContext()) |
| context->didGiveTypeExtension(element, type); |
| } |
| |
| } // namespace WebCore |